I built this one out of treated lumber about 15 years ago.Still serves me today and has been used by dozens of friends and family over the years.That "custom cushion" came out of a school bus I converted to an RV.

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Cheers,Vern1Texans since The Old 300 in 1824NRA Lifetime Member

Made bunch of these for our clubs rifle range, less than $100 each. Black pipe frame with two layers of 3/4" treated plywood glued and bolted to the frame. Adjustable piano style stool fits any sized shooter, disc blade base and ACME threaded seat. Tube bender or local muffler shop can bend the frames. Solid and weather proof. Some at the range have been out for nearly 20 years.